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题名: Enhancement of bichromatic high-order-harmonic generation with a high-frequency field
作者: Faria, CFD ;  Du, ML
刊名: PHYSICAL REVIEW A
出版日期: 2001
卷号: 64, 期号:2, 页码:-
关键词: ATTOSECOND PULSE TRAINS ;  ULTRASHORT LASER-PULSES ;  STATIC ELECTRIC-FIELD ;  RAY-ATOM SCATTERING ;  MAGNETIC-FIELDS ;  PHASE-CONTROL ;  EMISSION ;  POLARIZATION ;  IONIZATION
学科分类: Physics
通讯作者: Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany.
部门归属: Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Using a high-frequency field superposed to a linearly polarized bichromatic laser field composed by a wave with frequency omega and a wave with frequency 2 omega, we show it is possible to enhance the intensity of a group of high harmonics in orders of magnitude. These harmonics have frequencies about 30% higher than the monochromatic-cutoff frequency, and, within the three-step-model framework, correspond to a set of electron trajectories for which tunneling ionization is strongly suppressed. Particular features in the observed enhancement suggest that the high-frequency field provides an additional mechanism for the electron to reach the continuum. This interpretation is supported by a time-frequency analysis of the harmonic yield. The additional high-frequency field permits the control of this group of harmonics leaving all other sets of harmonics practically unchanged, which is an advantage over schemes involving only bichromatic fields.
收录类别: SCI
WOS记录号: WOS:000170297300086
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13700
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Faria, CFD,Du, ML. Enhancement of bichromatic high-order-harmonic generation with a high-frequency field[J]. PHYSICAL REVIEW A,2001,64(2):-.
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